:root{
  --bg1:#0ea5e9;
  --bg2:#22c55e;
  --card:#ffffff;
  --text:#0f172a;
  --muted:#64748b;
  --primary:#4f46e5;
  --primary-600:#4338ca;
  --success:#16a34a;
  --danger:#ef4444;
  --ring: rgba(79,70,229,0.25);
}

*{ box-sizing:border-box; }

html,body{
  height:100%;
}

body{
  margin:0;
  font-family: "Poppins", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  color: var(--text);
  background: radial-gradient(1000px 600px at 20% 10%, rgba(255,255,255,.35), transparent),
              linear-gradient(135deg, var(--bg1), var(--bg2));
  display:flex;
  align-items:center;
  justify-content:center;
  padding:24px;
}

.container{
  width: min(960px, 100%);
}

.header{
  text-align:center;
  color:#fff;
  margin-bottom:16px;
}

.header h1{
  margin:0;
  font-size: clamp(28px, 3vw, 40px);
  letter-spacing:.4px;
}

.sub{
  margin:.25rem 0 0;
  opacity:.9;
}

.card{
  background: var(--card);
  border-radius: 18px;
  box-shadow: 0 12px 30px rgba(2,6,23,.2);
  padding: clamp(16px, 3vw, 28px);
}

.image-wrap{
  position: relative;
  width: 100%;
  aspect-ratio: 1.9 / 1;
  border-radius: 16px;
  background: #f1f5f9;
  display:flex;
  align-items:center;
  justify-content:center;
  overflow:hidden;
}

.pokemon-img{
  width: clamp(120px, 35vw, 220px);
  height: auto;
  image-rendering: pixelated;
  transition: filter .3s ease, transform .3s ease, opacity .2s ease;
}

.silhouette{
  filter: brightness(0) saturate(100%) invert(9%) sepia(97%) saturate(7450%) hue-rotate(200deg) brightness(90%) contrast(102%);
  opacity:.9;
}

.loader{
  position:absolute;
  width:52px;
  height:52px;
  border:5px solid #e2e8f0;
  border-top-color: var(--primary);
  border-radius:50%;
  animation:spin 1s linear infinite;
  display:none;
}

.loader[aria-hidden="false"]{
  display:block;
}

@keyframes spin{
  to { transform: rotate(360deg); }
}

.controls{
  margin-top:18px;
  display:flex;
  flex-direction:column;
  gap:14px;
}

.input-row{
  display:grid;
  grid-template-columns: 1fr auto;
  gap:10px;
}

#nombrePokemonInput{
  border:1px solid #e2e8f0;
  border-radius:12px;
  padding:12px 14px;
  font-size:16px;
  outline:none;
  transition: box-shadow .2s, border-color .2s;
}

#nombrePokemonInput:focus{
  border-color: var(--primary);
  box-shadow: 0 0 0 6px var(--ring);
}

.btn{
  background:#0f172a;
  color:#fff;
  border:none;
  border-radius:12px;
  padding:12px 16px;
  font-weight:600;
  cursor:pointer;
  transition: transform .15s ease, box-shadow .15s ease, background .2s ease;
  box-shadow: 0 6px 14px rgba(2,6,23,.25);
}

.btn:hover{
  transform: translateY(-1px);
  box-shadow: 0 10px 18px rgba(2,6,23,.28);
}

.btn:active{
  transform: translateY(0);
  box-shadow: 0 4px 10px rgba(2,6,23,.22);
}

.btn[disabled]{
  opacity:.7;
  cursor:not-allowed;
  box-shadow:none;
  transform:none;
}

.primary{
  background: var(--primary);
}

.primary:hover{
  background: var(--primary-600);
}

.ghost{
  background: #e2e8f0;
  color:#0f172a;
  box-shadow: none;
}

.actions{
  display:flex;
  gap:10px;
  align-items:center;
  flex-wrap: wrap;
}

.hint{
  color: var(--muted);
  font-size: 14px;
}

.score{
  display:flex;
  gap:10px;
  flex-wrap: wrap;
}

.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  background:#f1f5f9;
  border-radius: 999px;
  padding:8px 12px;
  font-size:14px;
}

.chip.success{
  border:1px solid rgba(22,163,74,.2);
  color: var(--success);
  background: #f0fdf4;
}

.chip.danger{
  border:1px solid rgba(239,68,68,.2);
  color: var(--danger);
  background: #fef2f2;
}

.feedback{
  min-height: 24px;
  font-weight:600;
}

.feedback.ok{ color: var(--success); }
.feedback.err{ color: var(--danger); }

.rules{
  margin-top:8px;
  color: var(--muted);
}

.sr-only{
  position:absolute;
  width:1px;
  height:1px;
  padding:0;
  margin:-1px;
  overflow:hidden;
  clip:rect(0,0,0,0);
  white-space:nowrap;
  border:0;
}

/* Dialog */
.dialog{
  border:none;
  border-radius:16px;
  padding:22px;
  max-width: 420px;
  width: calc(100% - 32px);
  box-shadow: 0 20px 50px rgba(2,6,23,.35);
}

.dialog::backdrop{
  background: rgba(15,23,42,.5);
}

.dialog-actions{
  display:flex;
  gap:10px;
  justify-content:flex-end;
  margin-top:16px;
}

/* Responsive */
@media (max-width: 560px){
  .input-row{
    grid-template-columns: 1fr;
  }
}
/* Glow de celebración en la tarjeta */
.card.celebrate {
  animation: card-glow 900ms ease-out;
  box-shadow: 0 0 0 0 rgba(79,70,229,0);
}

@keyframes card-glow {
  0%   { box-shadow: 0 0 0 0 rgba(79,70,229,0.00); }
  30%  { box-shadow: 0 0 0 10px rgba(79,70,229,0.18); }
  60%  { box-shadow: 0 0 0 6px rgba(79,70,229,0.10); }
  100% { box-shadow: 0 0 0 0 rgba(79,70,229,0.00); }
}

/* “Pop” en la imagen al acertar */
.pokemon-img.pop {
  animation: img-pop 450ms ease-out;
}

@keyframes img-pop {
  0%   { transform: scale(0.95); }
  60%  { transform: scale(1.08); }
  100% { transform: scale(1.0); }
}

/* Rebote del feedback al acertar */
.feedback.bounce {
  animation: fb-bounce 500ms ease-out;
}

@keyframes fb-bounce {
  0%   { transform: translateY(-2px); }
  40%  { transform: translateY(3px); }
  70%  { transform: translateY(-1px); }
  100% { transform: translateY(0); }
}